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9.1. , , t = 5 epepiy S = 510-6 2 q = 100 .
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9.2. ρ = 2,810-8 . j = 2104 / 2. , ᒺ .
9.3. , r = 5,310-9 ?
9.4. = 10 , S = 1 2. , .
9.5. , R = 32 , . 䒺 . .
9.6. , R 0 = 32 . 䒺 . 䒺 , R = ?
9.7. R = 15 . ϳ . .
9.8. oip d = 1 , m = 0,893 . oip ρ = 1,7510 -8 , D = 8,93103 / 3.
9.9. R 1 = 81 eia i 璺 , oip R 2 = 1 . ?
9.10. , , ... ε = 6 r = 2 , = 0,5 . .
9.11. , R = 20 , ... η = 50 %;1) . 2) ..., , 璺 ?
9.12. ... ε = 20 r = 5 . ?
9.13. ... ε = 1,1 i r = 1 oip R = 9 . : 1) ; 2) ; 3) ; 4)... .
9.14. i 璺 , i U = 110 ; , U 1 = 40 , = 12 .
9.15. oip R 1 = 20 I 1 = 5 , oip R 2 = 10 2 = 9 . ?
9.16. R 1 = 2 R 2 = 0,1 . .
9.17. ε = 4,5 , oip r = 3 . 璺 , , U = 220 i = 60 ?
9.18. , ... ε = 2 i oip r = 410 - 2 䒺 . l = 4 , d = 810-4 . U = 1,98 . . oip ρ = 1,7510-8 .
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9.19. . t 1 = 30 , t 2 = 40 . , ?
9.20. oip 䒺 , U 1 = 120 = 4 U 2 = 220 ?
9.21. = 2700 U = 220 . .
9.22. U = 120 = 500 . 1 = 8 , U 1 = 20 ; t 1 = 20 . . α = 0,0048 - 1. ³ .
9.23. Oip , U = 220 = 100 t 1 = 2500 n = 15 , t 2 = 10 . : 1) oip t 2; 2) .
9.24. ϳ 1 = 3 , , U 1 = 4,25 . 2 = 4 U 2 = 3,5 . : 1) ...; 2) .
9.25. d = 0,4 = 0,5 , U = 220 ? ρ = 1,0510-6 .
9.26. = 60 U 1 = 127 . S = 0,1 2 , U 2 = 220 ? ρ = 10-6 .
9.27. t 1 = 40 , , 璺 , . t 2 , 璺 ?
9.28. ... ε r. , 璺 , . ... η, m t? t 1, t 2.
9.29. 1) , l = 10 t = 140 , , J = 5 / 2 ? 2) ? ρ = 8,710-8 . α = 0,0042 - 1.
9.30. S = 0,17 2 = 0,025 . , , 䳺 , . oip ρ = 1,7510-8 .
9.31. l = 1,5 d = 0,3 U = 10 . :1) , ; 2) , t 1 = 1 .; 3) ; 4) , t 2 = 1 . ρ = 8,710-8 .
9.32. ij , 璺 . , = 1 . R 2 = 15 R 3 = 20 . R2 2 = 0,3 . R 1.
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9.33. , U 1 = 127 , = 100 . , U 2= 220 ?
9.34. R 1 = 20 R 2 = 30 , . ?
9.35. , ... ε = 3 , = 3 . .
9.36. U = 220 = 200 . = 2700 . ij d = 0,03 . . 0 = 300 ρ 0 = 5,510-8 . α = 0,0048 - 1 .
9.37. 璺 R = 0,5 . ... ε 1 = 10 ε 2 = 6 , r = 1 . , .
9.38. , 璺 , ... ε 1 = 1,4 ; ε 2 = 1,2 r 1 = 0,6 ; r 2 = 0,4 .
9.39. . 9.1 R = 100 ;ε = 150 ; r = 50 . : 1) RV = 500 , ; 2) 䒺 . . 9.1
9.40. . 9.2 ε = 2 ; r 1 = 1 ; r 2 = 2 . : 1) R, , ... r 1 1 = 1 ; 2) , ... r 2; 3) , R.
. 9.2
9.41. . 9.3 ε 1 = 2 ; ε 2 = 4 ; ε 3 = 6 ; R 1 = 4 ; R 2 = 6 ; R 3 = 8 . . . . 9.3
9.42. . 9.4 ε 1 = 2 ; ε 2 = 1 ; R 1 = 103 ; R 2 = 500 ; R 3 = 200 . R = 200 . . .
. 9.4
9.43. . 9.5 ε 1 = 2 ; ε 2 = 4 ; R 1 = 0,5 , R 1: UR 1 = 1 . . .
. 9.5
9.44. . 9.6 ε 1 = 110 ; ε 2 = 220 ; R 1 = R 2 = 100 ,
. 9.6 R 3 = 500 . . .
9.45. . 9.7 ε 1 = 2,1 ; ε 2 = 1,9 ; R 1 = 45 ; R 2 = 10 ; R 3 = 100 . . . . 9.7
9.46. = 2 . q t = 1 . 1) ; 2) 䒺 ? : b+ = 32,6 2 /·; : b- = 6,5 2 /·.
9.47. ͳ S = 120 2 t = 5 . = 0,3 . n =2, = 5910-3 /. F = 9,65104 /. .
9.48. U = 10 . 䳿 , m = 1,2 W = 6 㳿. g= 1,11810-6 /.
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9.49. 1 = 10810-3 /, n = 1 1 = 1,11810-6 /. 2, 2 = 19710-3 /.
9.50. , t = 3 1 = 0 2 = 1 . = 6410-3 /; n = 2; F = 9,65104 /. , .
9.51. 璺 . n 1 = 2; n 2 = 1. 1 = 6410-3 /; 2 = 10810-3 /; F = 9,65104 /. 1) , q = 10 . 2) , , m 1 = 310-4 .
9.52. t = 20 = 10 . ³ ᒺ , V = 0,5 3. , ᒺ = 2105 . μ = 3210-3 /; = 8,2910-3 /; R = 8,31 /. : 1) , ; 2) .
9.53. , , 1 = 2400 , = 100 ? w = 4,5 .
9.54. , = 20 / j = 6,5810-6 / 2. . b+ = 1,3810-11 2 /·; b- = 1,9110-11 2 /·.
9.55. , 䳺 N = 10 ; . ³ d = 1 , S = 100 2.
9.56. , d = 5 , j = 1,60-9 / 2. , t = 1 .
9.57. U = 400 . , , = 10 ; . , S = 200 2, d = 5 . b+ = 1,3810-11 2 /·; b- = 1,9110-11 2 /·.
9.58. , . . , j, q, m, S, U.
9.59. N = 5 璺 ... r = 0,2 R. R , , ?
9.60. R = 5 = 1 . = 6 . ?